Taylor Swift flashed her diamond engagement ring from fiancée Travis Kelce while performing her song “Love Story” at a party for the Tight End University (TEU) summit Tuesday.

Swift surprised the exclusive crowd with a performance of her hit 2008 single with country star Lainey Wilson on stage at The Pinnacle in Nashville, Tenn., a little more than a week before her wedding.

The 14-time Grammy winner took a rare song request from 49ers tight end George Kittle — who founded the offseason program with Kelce and former tight end Greg Olsen — and gave an animated rendition of “Love Story” that had the place rocking.

Swift, who put on a surprise performance at last year’s TEU party, danced on stage and waved to fans on the upper level of the venue.

The crowd got particularly loud when she flashed her engagement ring from the three-time Super Bowl champ — a antique-inspired piece with a 8- to 10-carat Old Mine brilliant-cut (elongated cushion cut) diamond.

Swift looked stunning in a custom asymmetrical black strapless gown by Monse, which featured silver embellishments on the hemline that trailed from her hip to her opposite ankle.

Her metallic heels were by Aquazzura.

Swift and Kelce — who are set to tie the knot at Madison Square Garden on July 3 — attended Monday night’s welcome party, where she wore a yellow Simkhai minidress with matching Aquazzura heels.

The pair posed for a photo with Kittle and his wife, Sports Illustrated Swimsuit model, Claire, and Olsen and his wife, Kara.

Swift and Kelce began dating in 2023 and announced their engagement last August.

Founded in 2021 by Kittle, Kelce and Olsen, Tight End University was created to bring the position’s players together for an immersive three-day program to bond, collaborate and learn among their peers.

The program has a variety of activities including film study, on-field drills, recovery, rehabilitation and more.